CA2291161A1 - Saw assembly - Google Patents

Saw assembly Download PDF

Info

Publication number
CA2291161A1
CA2291161A1 CA002291161A CA2291161A CA2291161A1 CA 2291161 A1 CA2291161 A1 CA 2291161A1 CA 002291161 A CA002291161 A CA 002291161A CA 2291161 A CA2291161 A CA 2291161A CA 2291161 A1 CA2291161 A1 CA 2291161A1
Authority
CA
Canada
Prior art keywords
feeding
toothed wheel
saw
bar
piston rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002291161A
Other languages
French (fr)
Other versions
CA2291161C (en
Inventor
Rolf Ornberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hultdin System AB
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2291161A1 publication Critical patent/CA2291161A1/en
Application granted granted Critical
Publication of CA2291161C publication Critical patent/CA2291161C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A01G23/091—Sawing apparatus specially adapted for felling trees
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/141—With means to monitor and control operation [e.g., self-regulating means]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/263—With means to apply transient nonpropellant fluent material to tool or work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7101—With tool in-feed
    • Y10T83/7114—Including means to permit arcuate in-feed motion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8798—With simple oscillating motion only
    • Y10T83/8804—Tool driver movable relative to tool support
    • Y10T83/8807—Gear or ratchet pawl drives toothed tool support

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Sawing (AREA)
  • Harvesting Machines For Root Crops (AREA)

Abstract

A saw assembly for a grip-harvester has a saw chain (4) running around a bar (3) and a chain sprocket (5); a bar holder (2) pivotably journalled on the saw assembly stand (1); a saw motor (6) driving the chain sprocket (5); and a device (14) for feeding the bar out and in, said feeding-out and feeding-in device (14) comprising a hydraulic cylinder (17) mounted on the stand (1) and having a piston rod (19). According to the invention the movements of the piston rod (19) are transmitted to the pivotable bar holder by means of a pivotably journalled toothed wheel (26) which is joined to the bar holder (2) and has a toothed wheel rim (27) cooperating with the piston rod which is in the form of a rack. The saw assembly is also provided with a device for sensing and recording the angular position of the saw bar (3) in relation to an initial position, which device has a smaller toothed wheel (60) in engagement with the larger toothed wheel (26) of the feeding-out and feeding-in device (14), and also a sensor (61 or 62) which senses a tooth gap or a tooth on said smaller toothed wheel (60).
CA002291161A 1997-05-29 1998-05-22 Saw assembly Expired - Lifetime CA2291161C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9702022-6 1997-05-29
SE9702022A SE509713C3 (en) 1997-05-29 1997-05-29 Saagdon
PCT/SE1998/000961 WO1998053666A1 (en) 1997-05-29 1998-05-22 Saw assembly

Publications (2)

Publication Number Publication Date
CA2291161A1 true CA2291161A1 (en) 1998-12-03
CA2291161C CA2291161C (en) 2002-11-12

Family

ID=20407145

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002291161A Expired - Lifetime CA2291161C (en) 1997-05-29 1998-05-22 Saw assembly

Country Status (6)

Country Link
US (1) US6158322A (en)
AU (1) AU7792998A (en)
CA (1) CA2291161C (en)
FI (1) FI118587B (en)
SE (1) SE509713C3 (en)
WO (1) WO1998053666A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI116266B (en) * 2000-05-10 2005-10-31 Ponsse Oyj Method and arrangement for adjusting the sawing speed of a cutting saw
FI114436B (en) * 2000-07-07 2004-10-29 Plustech Oy unit converter
DE20120984U1 (en) * 2001-12-27 2002-04-11 Trumpf Grüsch AG, Grüsch Machine for the cutting processing of plate-like workpieces, in particular sandwich plates
FI20021379A (en) 2002-07-12 2004-01-13 Plustech Oy Sawing device and safety system of the same for a breaking saw chain
US9119354B2 (en) 2007-09-11 2015-09-01 Deere & Company Tree harvester head with lubrication system for multiple saws
CN101733781B (en) * 2010-01-26 2012-05-23 浙江林学院 Hydraulic drive wood feeder
FI125149B (en) 2012-03-20 2015-06-15 Waratah Om Oy Lubrication system and machine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279508A (en) * 1965-11-26 1966-10-18 Mcculloch Corp Chain saw bar
US3565138A (en) * 1968-10-03 1971-02-23 Alva Z Albright Apparatus and method for felling trees
US3604479A (en) * 1969-04-25 1971-09-14 Harrington Mfg Co Chain saw tree-felling apparatus
US3789279A (en) * 1972-07-21 1974-01-29 Concrete Cutting Equipment Inc Work and feed control system for cutting machines
US4221245A (en) * 1979-01-19 1980-09-09 Koehring Canada Limited Tree harvester with saw and shear
US4901612A (en) * 1984-02-06 1990-02-20 Harris Gerald R Band saw apparatus and method with pressure controlled feed
US4848424A (en) * 1988-04-11 1989-07-18 Blount, Inc. Vehicle mountable tree felling apparatus
SE502386C2 (en) * 1991-03-13 1995-10-09 Hultdin Invest Ab Device for saws
US5143131A (en) * 1991-10-25 1992-09-01 Blount, Inc. Selectable spray pattern chain saw bar system
SE512608C2 (en) * 1995-03-02 2000-04-10 Kapman Ab Chain saw drive device
FI97918C (en) * 1995-07-18 1997-03-10 Plustech Oy Speed control system for a cutting machine for a woodworking machine, in particular a grapple harvester
CA2195898C (en) * 1996-02-07 2004-08-24 Thomas E. Hamby, Jr. Log sawing assembly
SE510751C2 (en) * 1996-09-30 1999-06-21 Sandvik Ab Reversible saw blade for color marking

Also Published As

Publication number Publication date
WO1998053666A1 (en) 1998-12-03
SE9702022L (en) 1998-11-30
SE509713C3 (en) 1999-03-29
SE509713C2 (en) 1999-03-01
FI118587B (en) 2008-01-15
SE9702022D0 (en) 1997-05-29
FI19992526A (en) 2000-01-25
CA2291161C (en) 2002-11-12
US6158322A (en) 2000-12-12
AU7792998A (en) 1998-12-30

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20180522